No they are not.
SOURCE: 2003 Hyundai Sonata Door Lock Problem
I had this problem. Through some research and asking some service personnel I found out it is a fairly easy fix. You will need to buy a new relay switch for the door locks. The dealer will/should know what you need. They are located (two of them, buy two and replace both) on the back side of the fuse box. It is not that easy to get back there. I had to lay on my back with my head up under the instrument panel. They are visible and can be removed if you take some time and be careful. Once I knew what I was looking at, it was easy to replace and the remote works like a charm. You can go to an auto supply, like Autozone, and they should have a schematic to show you where these relays are.
SOURCE: Hyundai Sonata 2003 Car starts then dies immediately :(
dear friend-it appeares that you have no feul pressure,check pressure,feul filter,feul system,
SOURCE: Can't program hyundai sonata to open garage door
GOTO HOMELINK.COM
THEY MAKE THE SYSTEM AND HAVE INSTRUCTIONS YOU CAN DOWNLOAD.
HOPE THIS HELPS
SOURCE: My 2003 Hyundai Sonata Door locks will not lock using
I have exactly the same problem. Keyfob will unlock the doors, but will only arm the alarm once the doors have been locked manually. Central locking button on driver side door no longer works, but I hear the clicking sound you're referring to.
I took it to a mechanic, and he seemed pretty sure it was a bad master window / door lock switch. The price he quoted to replace it was $255 plus tax, and I could never bite the bullet and pay for the work, so I've just been living with the problem.
Have you solved your situation yet?
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